To deactivate an account on Facebook please follow these steps with the images:
Step1: Go to your Facebook and from the top right-click the arrow button.
Step2: Select the settings & Privacy menu
Step3: Now click on the Settings gear
Step4: From the settings page click on “Your Facebook Information”

Step5: Click on view
Step6: By default, Deactivate will be selected press on continuing to Account Deactivate
That’s all you are done with deactivating a Facebook account